Gas detection device

Abstract

The utility model discloses a kind of gas detection devices, its technical solution points are at, including: shell, gas detection mechanism and air guide mechanism;The gas detection mechanism and air guide mechanism are all arranged in shell, the air outlet end of the air guide mechanism is close to the detection end of gas detection mechanism and is set, first air inlet and air outlet are opened on the shell, and filter mechanism is detachably set on the shell close to the first air inlet place.This utility model can accelerate the response time of gas detection and improve detection accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of gas detection technology, and in particular to a gas detection device. Background Technology

[0002] Monitoring the composition and concentration of gases in the air at substations and power distribution rooms is a crucial measure to ensure the safe operation of equipment, the health of personnel, and environmental compliance. Therefore, gas detection devices are typically installed in substations and power distribution rooms to detect the composition and concentration of the surrounding air.

[0003] However, as can be seen from the prior art patent document CN 116794227 A entitled "Gas Detection Device", it specifically discloses a housing and a detection unit. The housing has a through hole that communicates with the outside of the gas detection device. The detection unit has a mating hole and a gas chamber. The mating hole communicates with the gas chamber and with the through hole. External dust can enter the detection unit through the through hole and the mating hole. The gas detection response time is slow and it is easily affected by dust interference, resulting in low detection accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a gas detection device that can accelerate the response time of gas detection and improve detection accuracy.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] A gas detection device includes: a housing, a gas detection mechanism, and an air guide mechanism; both the gas detection mechanism and the air guide mechanism are disposed inside the housing, the air outlet of the air guide mechanism is disposed close to the detection end of the gas detection mechanism, the housing has a first air inlet and an air outlet, and a filter mechanism is detachably disposed on the housing near the first air inlet.

[0007] In some embodiments, the filtration mechanism includes: a breathable membrane and a fixing frame; the breathable membrane is disposed within the fixing frame, and a slot is provided on the housing near the first air inlet, the fixing frame is inserted into the slot, and the fixing frame has a first position in which the breathable membrane completely covers the first air inlet.

[0008] In some embodiments, a base plate is disposed inside the housing, and the air guiding mechanism includes a fixing part and an air guiding part; the fixing part is disposed on the base plate, the air guiding part is disposed on the fixing part, the air inlet end of the air guiding part faces the first air inlet hole, and the air outlet end of the air guiding part faces the detection end of the gas detection mechanism.

[0009] In some embodiments, the fixing part divides the space above the substrate inside the housing into a first chamber and a second chamber, the gas detection mechanism is disposed in the first chamber, and the first air inlet and air outlet are both connected to the first chamber.

[0010] In some embodiments, the fixing part includes a bracket and a fixing member. The bracket has a first extension block and a second extension block extending toward the first chamber. The air guide part includes a first fan and a second fan. The first fan is fixedly connected to the first extension block, and the second fan is fixedly connected to the second extension block. The bracket is provided with a connecting sleeve, and the base plate is provided with a mounting hole. The fixing member passes through the mounting hole and is fixedly connected to the connecting sleeve.

[0011] In some embodiments, the gas detection mechanism includes a sulfur hexafluoride sensor, an oxygen sensor, and an ozone sensor; the sulfur hexafluoride sensor, the oxygen sensor, and the ozone sensor are all mounted on a substrate, and the detection ends of the sulfur hexafluoride sensor, the oxygen sensor, and the ozone sensor all face the air guide section of the air guide mechanism.

[0012] In some embodiments, a warning mechanism is provided inside the housing. The warning mechanism includes a buzzer, light-shielding foam, and at least one lamp post. The buzzer and the lamp post are both located inside the housing. The light-shielding foam has a light-shielding hole corresponding to the lamp post. The light-shielding hole is a through hole. The lamp post is inserted into the light-shielding hole. The housing has a first light-transmitting hole corresponding to the lamp post.

[0013] In some embodiments, the housing includes: an upper shell, a lower shell, a first baffle, and a second baffle; the upper shell and the lower shell are snapped together to form a cavity with openings at both ends, the first baffle is disposed at one end of the cavity, the second baffle is disposed at the other end of the cavity, the first air inlet is disposed at the upper shell, the air outlet is disposed at the lower shell, and the second baffle is provided with a pluggable terminal.

[0014] In some embodiments, a first locking strip is provided on one side of the upper shell, and a first locking groove is provided on the other side of the upper shell. A second locking groove is provided on one side of the lower shell, and a second locking strip is provided on the other side of the lower shell. The first locking strip is engaged in the first locking groove, and the second locking strip is engaged in the second locking groove. A first reinforcing rib is provided on the upper shell, and a second reinforcing rib is provided on the lower shell. A base is provided on the lower shell, and a connecting groove is provided on the base. Both the first baffle and the second baffle are provided with heat dissipation holes. A decorative panel is provided on the upper shell, and a second air inlet is provided on the decorative panel, which communicates with the first air inlet.

[0015] In some embodiments, an antenna assembly is provided on the housing, the antenna assembly including: an antenna, a male connector and a female connector, the female connector being disposed on the housing, the antenna being disposed on the male connector, and the male connector being plugged into the female connector.

[0016] The technical solution provided by this utility model has the following advantages and effects: The air guide mechanism accelerates the intake of air from the substation and power distribution room into the gas detection mechanism, enabling the gas detection mechanism to quickly detect gas leaks and accelerating the gas detection response time. By setting a filter mechanism at the first air inlet, dust in the air can be prevented from entering the gas detection mechanism, improving the detection accuracy and service life of the gas detection mechanism, thereby improving the reliability and lifespan of the product. The detachable design of the filter mechanism allows it to be removed from the housing for cleaning the dust filtered by the filter mechanism. Attached Figure Description

[0017] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0018] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0021] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0022] Figure 4 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Housing; 11. Upper Housing; 111. First Air Inlet; 112. First Retaining Strip; 113. First Reinforcing Rib; 114. First Retaining Slot; 12. Lower Housing; 121. Air Outlet; 122. Second Retaining Slot; 123. Second Reinforcing Rib; 124. Base; 125. Connecting Slot; 126. Second Retaining Strip; 13. First Baffle; 14. Second Baffle; 15. Slot; 16. First Light Transmitting Hole; 17. Heat Dissipation Hole; 2. Gas Detection Mechanism; 21. Sulfur Hexafluoride Sensor; 22. Oxygen Sensor; 23. Ozone Sensor; 3. Air Guiding Mechanism; 31. Fixing part; 311. Bracket; 312. Fixing component; 313. Connecting sleeve; 314. First extension block; 315. Second extension block; 32. Air guide part; 321. First fan; 322. Second fan; 4. Filtering mechanism; 41. Breathable membrane; 42. Fixing frame; 5. Base plate; 6. Warning mechanism; 61. Lamp post; 62. Light-shielding foam; 621. Light-shielding hole; 7. Antenna assembly; 71. Antenna; 72. Male plug; 73. Female plug; 8. Decorative panel; 81. Second air inlet; 82. Second light-transmitting hole; 9. Plug-in terminal. Detailed Implementation

[0025] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0026] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0027] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0028] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0029] like Figures 1-4As shown, this utility model embodiment provides a gas detection device, including: a housing 1, a gas detection mechanism 2, and an air guide mechanism 3; the gas detection mechanism 2 and the air guide mechanism 3 are both disposed inside the housing 1, the air outlet end of the air guide mechanism 3 is disposed near the detection end of the gas detection mechanism 2, the housing 1 is provided with a first air inlet 111 and an air outlet 121, and a filter mechanism 4 is detachably disposed on the housing 1 near the first air inlet 111.

[0030] In practical applications, this gas detection device is mainly used in substations and power distribution rooms to detect gas leaks. The air guide mechanism 3 accelerates the intake of air from the substation or power distribution room into the gas detection mechanism 2, enabling it to quickly detect leaks. A filter mechanism 4 is installed at the first air inlet 111 to prevent dust from entering the gas detection mechanism 2, improving its detection accuracy and lifespan, thereby enhancing product reliability and overall lifespan. The detachable filter mechanism 4 can be removed from the housing 1 for cleaning the filtered dust.

[0031] Furthermore, such as Figure 2 and Figure 3 As shown, the housing 1 includes: an upper shell 11, a lower shell 12, a first baffle 13, and a second baffle 14; the upper shell 11 and the lower shell 12 are snapped together to form a cavity with openings at both ends, the first baffle 13 is disposed at one end of the cavity, the second baffle 14 is disposed at the other end of the cavity, the first air inlet 111 is disposed at the upper shell 11, the air outlet 121 is disposed at the lower shell 12, and the second baffle 14 is provided with a pluggable terminal 9.

[0032] In practical applications, both the upper shell 11 and the lower shell 12 are semi-shells 1 with openings at both ends. The upper shell 11 and the lower shell 12 are snapped together, allowing the shell 1 to be disassembled. A first screw secures the first baffle 13 to one end of the cavity, and a second screw secures the second baffle 14 to the other end of the cavity. The first baffle 13 completely covers one end of the cavity, and the second baffle 14 completely covers the other end. The upper shell 11, lower shell 12, first baffle 13, and second baffle 14 provide protection for the components inside the shell 1. The pluggable terminals 9 enable quick and reliable connection between this device and other electronic devices, greatly simplifying the assembly process.

[0033] Furthermore, such as Figure 3As shown, the filter mechanism 4 includes: a breathable membrane 41 and a fixing frame 42; the breathable membrane 41 is disposed inside the fixing frame 42, and a slot 15 is provided on the housing 1 near the first air inlet 111. The fixing frame 42 is inserted into the slot 15. The fixing frame 42 has a first position, in which the breathable membrane 41 completely covers the first air inlet 111.

[0034] In practical applications, the breathable membrane 41 is an air-permeable membrane 41 that allows air to pass through and filters dust. There are multiple first air inlets 111, forming an air intake area. A slot 15 is located on the upper shell 11 near the first air inlets 111. Specifically, a first L-shaped plate is located on one side of the air intake area, and a second L-shaped plate is located on the other side. The first and second L-shaped plates are positioned opposite each other, and the first L-shaped plate, the second L-shaped plate, and the air intake area form the slot 15. After the fixing frame 42 is inserted into the slot 15 at the first position, the breathable membrane 41 completely covers all the first air inlets 111, thus filtering the air entering from the first air inlets 111.

[0035] Furthermore, such as Figure 2 As shown, a base plate 5 is provided inside the housing 1, and the air guiding mechanism 3 includes a fixing part 31 and an air guiding part 32. The fixing part 31 is disposed on the base plate 5, and the air guiding part 32 is disposed on the fixing part 31. The air inlet end of the air guiding part 32 faces the first air inlet hole 111, and the air outlet end of the air guiding part 32 faces the detection end of the gas detection mechanism 2.

[0036] In practical applications, substrate 5 is a PCBA board, and pluggable terminals 9 are electrically connected to substrate 5. A fixing part 31 is disposed on substrate 5 to provide support for the air guide part 32. The air guide part 32 is used to quickly draw in external air to the gas detection mechanism 2 to accelerate the gas detection response time.

[0037] Furthermore, such as Figure 2 and Figure 3 As shown, the fixing part 31 divides the space above the substrate 5 inside the housing 1 into a first chamber and a second chamber. The gas detection mechanism 2 is disposed in the first chamber, and the first air inlet 111 and the air outlet 121 are both connected to the first chamber.

[0038] In practical applications, the space above the substrate 5 is divided into a first chamber and a second chamber by the fixing part 31, and the first air inlet 111 and the air outlet 121 are both connected to the first chamber. The air guide part 32 is located in the first chamber. When the air guide part 32 is in operation, after the external air enters the housing 1, it is easy to guide the air to flow along the direction of the first air inlet 111, the air guide part 32, the gas detection mechanism 2 and the air outlet 121. The directional airflow can avoid the formation of dead zones in the first chamber, ensure the freshness and representativeness of the intake air, and facilitate the improvement of detection efficiency and response speed.

[0039] Furthermore, such as Figure 3 As shown, the fixing part 31 includes a bracket 311 and a fixing member 312. The bracket 311 has a first extension block 314 and a second extension block 315 extending toward the first chamber. The air guide part 32 includes a first fan 321 and a second fan 322. The first fan 321 is fixedly connected to the first extension block 314, and the second fan 322 is fixedly connected to the second extension block 315. The bracket 311 is provided with a connecting sleeve 313, and the base plate 5 is provided with a mounting hole. The fixing member 312 passes through the mounting hole and is fixedly connected to the connecting sleeve 313.

[0040] In practical applications, both the first fan 321 and the second fan 322 are electrically connected to the substrate 5, facilitating power supply to both fans. The first extension block 314 facilitates stable installation of the first fan 321, and the second extension block 315 facilitates stable installation of the second fan 322. Using the bracket 311 and the first and second extension blocks 315 to fix the fans forms a rigid overall structure, ensuring that the first fan 321 and the second fan 322 do not experience significant shaking or displacement during operation. The fixing member 312 can be a screw, which passes through the mounting hole and is fixed to the connecting sleeve 313, achieving modular installation of the air guide mechanism 3. The fixing part 31 and the air guide part 32 can be installed as a complete module onto the substrate 5 at once, improving production efficiency. If the fan is damaged or needs cleaning, the fixing member 312 can be unscrewed to remove the entire air guide mechanism 3 for repair or replacement without disassembling other complex components.

[0041] Furthermore, such as Figure 3 As shown, the gas detection mechanism 2 includes a sulfur hexafluoride sensor 21, an oxygen sensor 22, and an ozone sensor 23; the sulfur hexafluoride sensor 21, the oxygen sensor 22, and the ozone sensor 23 are all mounted on the substrate 5, and the detection ends of the sulfur hexafluoride sensor 21, the oxygen sensor 22, and the ozone sensor 23 all face the air guide section 32 of the air guide mechanism 3.

[0042] In practical applications, the first fan 321 is located above the detection ends of the oxygen sensor 22 and the ozone sensor 23, while the second fan 322 is located above the detection end of the sulfur hexafluoride sensor 21. By configuring the sulfur hexafluoride sensor 21, oxygen sensor 22, and ozone sensor 23, real-time detection of the concentrations of sulfur hexafluoride, oxygen, and ozone can be achieved. When sulfur hexafluoride leakage, excessively low oxygen concentration, or ozone leakage occurs, an alarm is triggered, ensuring the normal, safe, and effective operation of the equipment, reducing the hazards caused by gas leaks, and improving the safety of equipment operation.

[0043] Furthermore, such as Figure 2 and Figure 3 As shown, a warning mechanism 6 is provided inside the housing 1. The warning mechanism 6 includes a buzzer, a light-shielding foam 62, and at least one light column 61. The buzzer and the light column 61 are both located inside the housing 1. The light-shielding foam 62 has a light-shielding hole 621 corresponding to the light column. The light-shielding hole 621 is a through hole. The light column is inserted into the light-shielding hole 621. The housing 1 has a first light-transmitting hole 16 corresponding to the light column 61.

[0044] In practical applications, the housing 1 contains three lamp posts 61, which can serve as operation indicator, power indicator, and communication indicator, respectively. The housing 1 has three first light-transmitting holes 16 corresponding to the operation indicator, power indicator, and communication indicator, respectively. The light-shielding foam 62 has three light-shielding holes 621 corresponding to the three lamp posts 61. After the three lamp posts 61 are inserted into their respective light-shielding holes 621, mutual interference between the three lamp posts 61 is prevented, limiting the light-emitting range of the lamp posts 61, allowing the light emitted by the lamp posts 61 to be emitted through the corresponding first light-transmitting holes 16. The sulfur hexafluoride sensor 21, oxygen sensor 22, ozone sensor 23, lamp posts 61, and buzzer are all electrically connected to the substrate 5. In the event of sulfur hexafluoride leakage, low oxygen concentration, or ozone leakage, the buzzer will sound a continuous alarm, and the operation indicator will change from green to red and flash rapidly, providing an audible and visual alarm to on-site personnel.

[0045] Furthermore, such as Figure 3 and Figure 4As shown, the upper shell 11 has a first retaining strip 112 on one side and a first retaining groove 114 on the other side. The lower shell 12 has a second retaining groove 122 on one side and a second retaining strip 126 on the other side. The first retaining strip 112 is engaged in the first retaining groove 114, and the second retaining strip 126 is engaged in the second retaining groove 122. The upper shell 11 has a first reinforcing rib 113, and the lower shell 12 has a second reinforcing rib 123. The lower shell 12 has a base 124, and the base 124 has a connecting groove 125. The first baffle 13 and the second baffle 14 both have heat dissipation holes 17. The upper shell 11 has a decorative panel 8, and the decorative panel 8 has a second air inlet 81, which communicates with the first air inlet 111.

[0046] In practical applications, the upper shell 11 and lower shell 12 are detachably connected through the engagement of the first locking strip 112 and the first locking slot 114, and the engagement of the second locking strip 126 and the second locking slot 122. The upper shell 11 has first reinforcing ribs 113 on both sides, and the lower shell 12 has second reinforcing ribs 123 on both sides. The first and second reinforcing ribs 113 and 123 are arranged laterally, improving the rigidity and strength of the upper shell 11 and lower shell 12. Furthermore, the first and second reinforcing ribs 113 and 123 alter the natural frequency of the shell 1, causing it to deviate from the common excitation frequency, thereby avoiding resonance. The connecting groove 125 on the base 124 provides precise positioning and guidance, facilitating the installation of the shell 1 on other equipment. The heat dissipation hole 17 is located close to the upper shell 11, allowing heat generated inside the shell 1 to dissipate through the heat dissipation hole 17. The decorative panel 8 allows for the design of the product's signature elements, enhancing the brand image.

[0047] Furthermore, such as Figure 4 As shown, an antenna 71 assembly 7 is provided on the housing 1. The antenna 71 assembly 7 includes an antenna 71, a male plug 72 and a female plug 73. The female plug 73 is disposed on the housing 1, the antenna 71 is disposed on the male plug 72, and the male plug 72 is plugged into the female plug 73.

[0048] In practical applications, the use of male connector 72 and female connector 73 simplifies and speeds up the process, reducing assembly difficulty and error rates, and enabling rapid assembly. Bluetooth, Modbus, or LoRa wireless communication modules can be installed on the substrate 5 to send data to the smart gateway via wireless communication. The antenna 71 assembly 7 can be replaced according to the different wireless communication modules.

[0049] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0050] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0051] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A gas detection device, characterized in that, include: The housing comprises a gas detection mechanism and a ventilation guide mechanism; both the gas detection mechanism and the ventilation guide mechanism are housed within the housing, with the outlet of the ventilation guide mechanism positioned close to the detection end of the gas detection mechanism. The housing has a first air inlet and an air outlet, and a filter mechanism is detachably mounted on the housing near the first air inlet. The filtration mechanism includes: a breathable membrane and a fixing frame; The breathable membrane is disposed within the fixed frame, and a slot is provided on the housing near the first air inlet. The fixed frame is inserted into the slot, and the fixed frame has a first position in which the breathable membrane completely covers the first air inlet.

2. The gas detection device as described in claim 1, characterized in that, The housing contains a base plate, and the air guiding mechanism includes a fixing part and an air guiding part; the fixing part is disposed on the base plate, the air guiding part is disposed on the fixing part, the air inlet end of the air guiding part faces the first air inlet hole, and the air outlet end of the air guiding part faces the detection end of the gas detection mechanism.

3. The gas detection device as described in claim 2, characterized in that, The fixing part divides the space above the substrate inside the housing into a first chamber and a second chamber. The gas detection mechanism is located in the first chamber, and the first air inlet and air outlet are both connected to the first chamber.

4. The gas detection device as described in claim 3, characterized in that, The fixing part includes a bracket and a fixing member. The bracket has a first extension block and a second extension block extending toward the first chamber. The air guide part includes a first fan and a second fan. The first fan is fixedly connected to the first extension block, and the second fan is fixedly connected to the second extension block. The bracket is provided with a connecting sleeve, and the base plate is provided with a mounting hole. The fixing member passes through the mounting hole and is fixedly connected to the connecting sleeve.

5. The gas detection device according to any one of claims 1-4, characterized in that, The gas detection mechanism includes a sulfur hexafluoride sensor, an oxygen sensor, and an ozone sensor; the sulfur hexafluoride sensor, the oxygen sensor, and the ozone sensor are all mounted on a substrate, and the detection ends of the sulfur hexafluoride sensor, the oxygen sensor, and the ozone sensor all face the air guide section of the air guide mechanism.

6. The gas detection device according to any one of claims 1-4, characterized in that, The housing is equipped with an early warning mechanism, which includes a buzzer, light-shielding foam, and at least one light column. The buzzer and the light column are both located inside the housing. The light-shielding foam has a light-shielding hole corresponding to the light column. The light-shielding hole is a through hole. The light column is inserted into the light-shielding hole. The housing has a first light-transmitting hole corresponding to the light column.

7. The gas detection device according to any one of claims 1-4, characterized in that, The housing includes an upper shell, a lower shell, a first baffle, and a second baffle; the upper shell and the lower shell are snapped together to form a cavity with openings at both ends, the first baffle is located at one end of the cavity, the second baffle is located at the other end of the cavity, the first air inlet is located on the upper shell, the air outlet is located on the lower shell, and the second baffle is provided with a pluggable terminal.

8. The gas detection device as described in claim 7, characterized in that, The upper shell has a first locking strip on one side and a first locking groove on the other side. The lower shell has a second locking groove on one side and a second locking strip on the other side. The first locking strip engages with the first locking groove, and the second locking strip engages with the second locking groove. The upper shell has a first reinforcing rib, and the lower shell has a second reinforcing rib. The lower shell has a base with a connecting groove. Both the first and second baffles have heat dissipation holes. The upper shell has a decorative panel with a second air inlet that communicates with the first air inlet.

9. The gas detection device according to any one of claims 1-4, characterized in that, An antenna assembly is provided on the housing. The antenna assembly includes an antenna, a male connector, and a female connector. The female connector is disposed on the housing, and the antenna is disposed on the male connector. The male connector is plugged into the female connector.

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